Header refreshing problem of CSV::Table in v 3.0.3

[tkosaka1976]

Probably, v3.0.3, the header of CSV::Table is not refreshed by the addition of new CSV::Row object or Hash.

require 'csv'

txt =<<TXT
"h1","h2","h3"
1,"test",3
2,"test",6
3,"test",9
TXT

table = CSV::parse(txt, headers: true)
table.each do |row|
  row << {"h4" => "additional"}
end
puts table.to_csv

ver 3.0.3

h1,h2,h3
1,test,3,additional
2,test,6,additional
3,test,9,additional

ver 3.0.0

h1, h2, h3, h4
1, test, 3, additional
2, test, 6, additional
3, test, 9, additional

I'm not sure but from discussion in stack-overflow board or my trial, it was started from 3.0.1.
v 3.0.0 is working as expect.

[anothermh]

My local testing showed the issue in 3.0.1, 3.0.2, and 3.0.3, but not in any prior versions.

[kou]

Thanks for your report.
I've fixed this. We should keep backward compatibility as much as possible.

[tkosaka1976]

Thank you kou for your update.
I used v3.0.4 but it still do not work as expect.
Do I some mistake?

[anothermh]

Did you read my answer to your question at https://stackoverflow.com/a/54263970 ? Because this update resolved the issue as described.

[tkosaka1976]

Thank you @anothermh for your help.
Yes, I read your description.

But, I misunderstood that the version loaded from "require" is installed newest csv gem version.
Then, I updated csv gem to v3.0.4 but I still need to write:
gem 'csv', '>=3.0.4'
Probably, default csv gem still 3.0.1-3.0.3, right?

[kou]

This is a problem of Bundler: https://bugs.ruby-lang.org/issues/15469

[tkosaka1976]

This is a problem of Bundler: https://bugs.ruby-lang.org/issues/15469

I see. I'll wait for the revision.

Thank you for your help.